[Temp FIX] for armbian-bsp-cli-helios64 21.05.8 fancontrol service fail.
A few Armbian packages were updated (armbian-bsp-cli-helios64, armbian-config, armbian-firmware &armbian-zsh) to version 21.05.08.
At some point I noticed that the fancontrol service had failed to start up after the reboot - it was complaining about a file missing(/dev/thermal-cpu). If you run into this after the update, just update your /etc/fancontrol to the content below and your fancontrol should go back to normal.
# Helios64 PWM Fan Control Configuration
# Temp sou
Still not work with fresh-build edge images.
No simlink /dev/thermal-cpu, fancontrol start to work if manualy do
ln -s /sys/devices/virtual/thermal/thermal_zone0/hwmon0 /dev/thermal-cpu
TL;DR:
in /etc/udev/rules.d/90-helios64-hwmon.rules an line 16 set ATTR{name}=="cpu|cpu_thermal".instead of ATTR{name}=="cpu"
...
and I see two extra simlinks in root:
hwmon0 -> /sys/devices/virtual/thermal/thermal_zone0/hwmon0
thermal_zone0 -> /sys/devices/virtual/therma